Folifemurum duplicatum, Che, Yanli, Zhang, Yalin & Wang, Yinglun, 2013

Che, Yanli, Zhang, Yalin & Wang, Yinglun, 2013, A new genus of the tribe Parahiraciini from China, with notes on the tribe (Hemiptera: Fulgoroidea: Issidae), Zootaxa 3701 (1) : -

Folifemurum duplicatum sp. nov.

Figs. 1–27

Description. Length, male (including fore wing) (N=6): 4.0– 4.2 mm, length of fore wing: 3.5–3.6 mm; female (including fore wing) (N=4): 4.1–4.3 mm, length of forewing: 3.6–3.8 mm.

Colouration. Body, pronotum and mesonotum brown with pale yellow tubercles ( Fig. 1 ). Coryphe brown with disc dark brown. Eyes black. Metope blackish brown suffused with pale yellow tubercles; postclypeus blackish brown ( Fig. 3 ). Genae brown with blackish brown fascia ( Fig. 2 ). Rostrum brown, apex blackish brown. Forewings brown, hind wings dark brown ( Figs 4–5 ). Legs brown, fore and middle femora blackish brown with pale yellow tubercles ( Figs 6–7 ). Venter and dorsum of abdomen dark brown, apex somewhat brown.

Head and Thorax. Coryphe ( Fig. 1 ) approximately pentagonal with disc depressed, apical margin slightly convex and basal margin suddenly concave, posterior angles acuminate, 1.8× wider at posterior angles than long at midline. Metope ( Fig. 3 ) granulose with disc slightly elevated, suffused with tubercles, median carina present, 1.8× longer at mid-length than widest part, 1.1× wider at widest part than at base. Genae ( Fig. 2 ) with fascia directed towards corresponding eye near antenna. Metopoclypeal suture slightly arched. Postclypeus smooth, without carina. Pronotum ( Fig. 1 ) with anterior margin distinctly convex and posterior margin nearly truncate; disc a little depressed with median carina two pits and scattered small tubercles. Mesonotum ( Fig. 1 ) granulose with tubercles, short and stout, with pit on lateral margin; disc slightly elevated with median carina, 2.2× wider at the widest part than medial length. Forewings nearly elliptical, 2.3× longer than widest part; Sc+R vein forking near base, M and CuA veins simple; lots of indistinct and irregular transverse veinlets scattered on the forewing; CuP absent, claval vein Pcu and A1 fused distinctly before half of length ( Figs. 4 , 23 ). Hind wings small, shorter than half of forewings, 0.3 times length of forewing, veins indistinct ( Fig. 5 ). Fore and middle femora slightly foliate ( Figs 6– 7 ). Spinal formula of hind leg 8-8-2 ( Fig. 9 ).

Male genitalia. Anal tube ( Fig. 11 ) in dorsal view mushroom-like and moderately large; latero-apical angle bearing a curved finger-shaped process directed ventrad; apical margin strongly convex in middle forming a big protrusion; in lateral view anal tube relatively wide, latero-apical angles long cylindrical and recurved. Anal column short, located at the middle of anal tube ( Fig. 11 ). Genital styles ( Figs 10 , 24 ) moderately long, nearly triangular, almost same width near base as at apex; basal margin rounded, dorso-lateral margin producing a large tapering inward lobe, near middle hind margin exceedingly concave medially, caudoventral angle obtusely convex. Capitulum of style ( Fig. 15 ) narrow and long with a large lateral tooth. Aedeagus deeply curved medially in lateral view ( Fig. 12 ). Phallus ( Figs 12–14 , 25–27 ) with a pair of spiniform processes ventrally directed cephalad near middle; dorsolateral lobe of phallobase with a short tapering laminar process, with apex directed cephalad in dorsal view; ventral phallobase lobe with apical margin slightly concave medially, shorter than dorsolateral phallobase lobes. Pygofer with laterodorsal angles prominent; anterior margin slightly concave medially, longer than posterior margin, which is almost straight ( Fig. 10 ).

Female genitalia. Anal tube in dorsal view nearly rectangular, apical margin nearly straight with angles obtuse and rounded; anal foramen in basal half ( Fig. 17 ). Gonoplac nearly rectangular in lateral view, median area slightly elevated, third gonoplac lobes fused at base ( Figs 21, 22 ). Lateral fields of posterior connective laminae of gonapophyses IX narrow and not projecting, lateral margins slightly obtusely convex in dorsal view; median field with shallow notch in apical part, lateral margins arched and slightly sclerised and pigmented, median portion membranous ( Figs 19, 20 ). Gonospiculum bridge large, flattened laterally, spade-shaped ( Fig. 19 ). Anterior connective lamina of gonapophysis VIII with three teeth in apical group and four short keeled teeth in lateral group, distal parts of posterior connective laminae angularly bent, median part weakly convex with apical margin slightly concave ( Figs 19, 20 ). Gonocoxa VIII approximately rectangular ( Fig. 18 ). Sternum VII with posterior margin nearly straight medially ( Fig. 16 ).

Material examined. Holotype ♂ (NWAFU) China, Sichuan Prov., Xiangcheng, 2900–3500 m, 28 June 1982, coll. Wang Shuyong.

Paratypes: 3♂♂1♀ (NWAFU), same data as holotype; 2♂♂1♀ (NWAFU), Sichuan Prov., Xiangcheng, 2900 m, 18 June 1982, coll. Wang Shuyong; 1♀ (NWAFU), Sichuan Prov., Xiangcheng, 2900 m, 28 June 1982, coll. Zhang Xuezhong; 1♀ (NWAFU), Yunnan Prov., Deqin, Benzilan, 2180 m, 23 August 1981, coll. Wang Shuyong.

Diagnosis. This species resembles Neodurium hamatum Wang & Wang (both without claval suture), but can be distinguished by the following characteristics: 1) coryphe with carina absent (both median and lateral carinae present in N. hamatum ); 2) mesonotum with only median carina present (median and 5 lateral carinae present in N. hamatum ); 3) metope, pronotum and mesonotum densely scattered with pale yellow tubercles (only pronotum sparsely scattered with tubercles in N. hamatum ); 4) phallus with a pair of spiniform processes ventrally directed cephalad near middle (2 hook-like processes at mid directed laterad in N. hamatum ).

Etymology. The Latin term “duplicatus” means double and refers to the fore and middle femur being slightly foliately dilated.

Figures

FIGURES 1 – 3. Folifemurum duplicatum sp. nov. 1. holotype, dorsal view; 2. holotype, lateral view; 3. holotype, frontal view. Scale bars = 0.5 mm.

FIGURES 4 – 22. Folifemurum duplicatum sp. nov. 4. forewing; 5. hind wing; 6. fore leg; 7. middle leg; 8. hind leg; 9. apex of hind leg; 10. male genitalia, lateral view; 11. anal tube, dorsal view; 12. penis, lateral view; 13. penis, dorsal view; 14. penis, ventral view; 15. capitulum of style, dorsal view; 16. female genitalia, ventral view; 17. anal tube, dorsal view; 18. gonocoxa VIII and gonapophyse VIII, lateral view; 19. gonapophyses IX, lateral view; 20. gonapophyses IX, dorsal view; 21. gonoplac, lateral view; 22. gonoplac, dorsal view. Scale bars = 0.2 mm.

FIGURES 23 – 27. Folifemurum duplicatum sp. nov. 23. forewing; 24. male genitalia, lateral view; 25. penis and connective, lateral view; 26. apex of penis, dorsal view; 27. penis, ventral view. Scale bars = 0.5 mm.